input = open("input", 'r').read().rstrip().split("\n")

problems = input[0].split()
for line in input[1:]:
    problems = list(zip(problems,line.split()))

def evaluate(value,values,op):
    if isinstance(values, tuple):
        return op(value, evaluate(values[1], values[0], op))
    return op(value, values)

def part1(problems):
    total = []
    for problem in problems:
        if problem[1] == "+":
            op = lambda x,y: int(x)+int(y)
            total.append(evaluate(0, problem[0], op))
        elif problem[1] == "*":
            op = lambda x,y: int(x)*int(y)
            total.append(evaluate(1, problem[0], op))
    return total

print(sum(part1(problems)))

# Part 2 :sob:
text_input = [line for line in input]
corrected_problems = []
height = len(text_input)

corrected_problem = None
op_code = None
for col in range(len(text_input[0])):

    if op_code == None:
        op_code = text_input[height-1][col]
    value = [text_input[i][col] for i in range(height-1)]
    if value == [" " for _ in range(height-1)]:
        corrected_problems.append((corrected_problem, op_code))
        corrected_problem = None
        op_code = None
        continue

    if corrected_problem == None:
        corrected_problem = int("".join(value))
    else:
        corrected_problem = (corrected_problem, int("".join(value)))

corrected_problems.append((corrected_problem, op_code))

print(sum(part1(corrected_problems)))